Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 25, 2016	Dec. 27, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowance (in Dollars)	$ 251	$ 25
Undesignated stock, shares authorized	1,000,000	1,000,000
Undesignated stock, issued (in Dollars)	0	0
Common stock, shares authorized	44,000,000	44,000,000
Common stock, shares issued	17,462,465	18,917,776
Common stock, shares outstanding	17,462,465	18,917,776